||Appleton & Wolfard
|Seismic Hazard Rating
|Number of Stories
|Gross Sq. Ft.:
The proposed modernization improvement plan is to renovate the interior of the building and seismically upgrade the structure. Seismic strengthening will include foundation improvements, new steel braced frames, a new concrete wall, plywood sheathing, glass replacement, new beams, and new anchors at the roof. The seismic work will trigger associated disabled access, code improvement, and environmental hazard mitigation work.
The construction will meet state (Title 24) and federal (Americans with Disabilities Act) guidelines. The access work for this library will consist of reconstructing an access ramp to the building, and making all public spaces, work areas, and amenities accessible. Existing restrooms will be renovated or relocated for accessibility. In addition, service counters and online catalog terminals will be made accessible.
The anticipated building code impacts involve updating the building to comply with current life safety code requirements for exiting, heating, ventilation, plumbing electrical, lighting and other control systems.
Asbestos-containing materials (ACM's) such as plasterboard walls, pipe insulation, vinyl flooring, and roofing will need to be removed whenever impacted by the seismic, disabled access, or renovation work.
Significant impact on pipe insulation and flooring materials is expected from the installation of footings, chords and collectors, and shear walls. The removal of ACM's will require relocation of the building occupants to avoid potential health risks. Lead that is impacted will also be removed.
Modernization improvements involve the redesign and complete renovation of public spaces, staff work areas, and public amenities to better serve the modern needs of the library. The branch currently has a non-operational fireplace, the design of the interior should consider its possible removal or sealing. The chimney will be braced or removed. Other improvements include new flooring, new lighting, improved landscaping and irrigation and possible removal of fireplace.
Work also includes upgrading or adding electrical/data outlets, and window replacement.
- The existing reinforced concrete shear wall at Northeast corner does not have sufficient flexural capacity for lateral loads. The top of the shear wall is unbraced.
- The roof diaphragm lacks adequate shear transfer connection to wall. It also lacks adequate connections at collectors, and chords at re-entrant corners.
- The concrete wall is not properly braced for out-of-plane forces.
- Suspended ceilings at corridors and exits are not adequately braced or separated from structural walls.
- Lay in ceiling tiles in exits and corridors are not secured with clips.
- Glazing is not isolated to accept predicted interstory drift without shattering.
- For fire suppression piping, risers are anchored or braced but without flexible couplings to allow for building drift and floor movement due to building configuration or seismic separation.
- Shut off devices are not provided at building utility interfaces for gas, in the event of earthquake induced failure.
- It is unclear if the exterior veneers are properly anchored.
- Install additional clips, nails, connector plates and bolts for load transfers at collector, chords and diaphragm to concrete wall connections to complete the load path.
- Provide collector and chord transfer connections at re-entrant corners of the roof.
- Install new bracing at top of the concrete shear wall at he Northeast corner of the building.
- Provide new channel at chord for the concrete shear wall at the Northeast corner of the building. Enlarge concrete wall footing as needed for the new chord.
- Install positive ties from the roof diaphragms’ vertical offset.
- Brace ceilings over public areas.
- Brace gas piping and fire suppression piping.
- Install shut-off devices for high-energy utility lines.
- Brace free- standing book stacks.
- Current ramp does not meet accessibility code requirements.
- Entry and exit doors do not meet access requirements.
- Work areas are not accessible.
- Public restrooms are not accessible.
- Some public amenities are not accessible.
- Make site path of travel improvements, including reconstruction of existing ramp.
- Add exterior safety railings as required.
- Make all entries and exits fully accessible, including new hardware or door width modifications.
- Make all counters and work areas accessible.
- Reconfigure or relocate restrooms, and other public amenities to make them accessible.
- Boiler, Air Ducts and HVAC equipment were upgraded in the past two (2) years.
- Main electrical panel is in poor condition and will need to be replaced.
- Electrical power and distribution system will have to be replaced or upgraded.
- Lighting throughout the building is outdated and in need of replacement.
- Power and data line outlets are not sufficient to respond to a new flexible layout.
- Replace existing electrical panel and power distribution system.
- Replace lighting throughout the building with energy efficient lighting.
- Add power and data line outlets to conform with a new layout.
- It is expected that the introduction of a new electrical power panel and distribution system will necessitate the replacement of all life/safety electrical equipment such as emergency lighting, exit signs, smoke alarms, and smoke detectors.
- It is anticipated that the introduction of a new electrical distribution system will necessitate the replacement of all electrical security equipment such as security alarms and security lighting.
- Security grilles will be needed to prevent vandalism or theft.
- Replace or add emergency lighting, exit signs, smoke alarms, and smoke detectors.
- Add fire extinguishers and fire sprinkler system as required by code.
- Replace interior and exterior security lighting.
- Provide a central security alarm system.
- Provide security grilles consistent with the building’s design and character.
- Asbestos Containing Materials (ACM’s) are identified in wall and ceiling sheetrock joint compound, baseboard glue, vinyl floor tiles and mastics, wall/floor mastic behind cork tiles, window caulking and glazing putty, built up roof, stucco, cement-asbestos board in floor.
- Where impacted by construction, abate asbestos in wall and ceiling sheetrock joint compound, baseboard glue, vinyl floor tiles and mastics, wall/floor mastic behind cork tiles, window caulking and glazing putty, built up roof, stucco, cement-asbestos board in floor.
- Abate asbestos if found in the hot water piping and fitting insulation.
- Lead that is impacted by construction shall also be abated.
- Exterior finishes need repair but are generally in good condition.
- Windows do not operate to allow for natural cross ventilation.
- Lockers do not operate properly.
- Fireplace is not functional.
- Re-point exterior brick finishes, and repair exterior roofing fascia board.
- Redesign or modify exterior glazing to minimize vandalism and provide south-face shading.
- Make windows operable as necessary for proper natural ventilation.
- Make rear yard gate operable as an emergency exit.
- Replace floor, wall, and ceiling finishes as necessary to work with a new architectural layout.
- Rec./Park land surrounds the Library, leading to potential jurisdictional maintenance issues.
- Vegetation and landscape improvements are in need of required maintenance.
- Provide a sprinkler system for Library vegetation.
- Improve existing landscaping.
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